{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949070,-0.315066,0.000000,0.000000,0.116181,-0.349972,0.929528,0.000000,-0.292593,0.881377,0.370897,0.000000,-1867061.287215,5624130.754242,2350876.508844,1],    "boundingVolume": {    "region": [1.891268,0.379917,1.891377,0.380032,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_1323.b3dm"}}}